@inproceedings{inproceedings533c7148, title = {Microstructural characterization and creep properties of cast 'NB', 'ZR'-modified HP steels}, author = {Martins, Fernando B. and Martins, Marcelo and Totten, George Edward and Fernandes, Frederico Augusto Pires and Casteletti, Luiz Carlos}, year = {2011}, booktitle = {ASM Heat Treating Society Conference} }